package org.csmzxy.class2333;

class Dog extends Animal{
@Override
public void speak() {
        System.out.println("小狗:汪汪……");
        }
//添加特有方法houseKeep()
public void houseKeep(){
        System.out.println("狗狗会看家");
        }
                                                                                                                                                                                   }